There was a desperate need for African agricultural skills in the Americas.
Diverse groups of Africans from the coastal regions were highly skilled at clearing and cultivating forest land, an expertise that was unknown to Europeans at the time. One African technique involved burning delineated sections of forest and later using the ash for fertilizer, this had to be done carefully. Many also knew how to raise crops in semi-tropical and tropical soils; high temperatures and heavy rains cause nutrients to seep out more quickly than they do in temperate climates.
The complex art of rice cultivation practiced by West Africans for centuries rescued the U.S. The technique and technology used for rice cultivation was unknown by Europeans outside of southern Italy at the time. Rice cultivation was one of the most difficult types of work one could do, working in knee-deep water every day. By 1750, South Carolina became the rice-growing center of North America; rice was the colony’s major export. Other crops introduce by Africans include, black-eyed peas, pumpkins, sesame seeds, kola nuts, cotton, yams, sorghum, muskmelon, and water-melon.
The agricultural skills of Africans and African-Americans garnered extraordinary wealth for the Americas and Europe.
List of Crops Introduced by Africans/African-Americans
Part 1: https://sincereignorance.com/2015/01/27/africans-and-the-making-of-the-americas-part-1-exploration/
Part 2: https://sincereignorance.com/2015/01/27/africans-and-the-making-of-the-americas-part-2-mining/
Part 3: https://sincereignorance.com/2015/02/03/africans-and-the-making-of-the-americas-part-3-herding/